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ath9k_hw: Configure RF channel freqency for AR9340

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Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2011-04-19 19:29:08 +05:30 committed by John W. Linville
parent d1395d85fa
commit 17869f4fe9
1 changed files with 20 additions and 3 deletions
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23
drivers/net/wireless/ath/ath9k/ar9003_phy.c
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@ -86,14 +86,31 @@ static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
channelSel = (freq * 4) / 120;
chan_frac = (((freq * 4) % 120) * 0x20000) / 120;
channelSel = (channelSel << 17) | chan_frac;
} else if (AR_SREV_9340(ah)) {
if (ah->is_clk_25mhz) {
u32 chan_frac;
channelSel = (freq * 2) / 75;
chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
channelSel = (channelSel << 17) | chan_frac;
} else
channelSel = CHANSEL_2G(freq) >> 1;
} else
channelSel = CHANSEL_2G(freq);
/* Set to 2G mode */
bMode = 1;
} else {
channelSel = CHANSEL_5G(freq);
/* Doubler is ON, so, divide channelSel by 2. */
channelSel >>= 1;
if (AR_SREV_9340(ah) && ah->is_clk_25mhz) {
u32 chan_frac;
channelSel = (freq * 2) / 75;
chan_frac = ((freq % 75) * 0x20000) / 75;
channelSel = (channelSel << 17) | chan_frac;
} else {
channelSel = CHANSEL_5G(freq);
/* Doubler is ON, so, divide channelSel by 2. */
channelSel >>= 1;
}
/* Set to 5G mode */
bMode = 0;
}